GHDL is a complete VHDL simulator, using the GCC technology. GHDL implements the VHDL language according to the IEEE 1076-1987 or the IEEE 1076-1993 standard. GHDL compiles VHDL files and creates a binary which simulates (or executes) your design.
New GHDL development is at
... [More] http://sourceforge.net/projects/ghdl-updates/ and includes significant VHDL-2008 support (in ghdl-0.33, released Oct 2015).
The original ghdl page was : http://ghdl.free.fr/
The original download page was : http://ghdl.free.fr/download.html [Less]

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Atom is a DSL embedded in Haskell used to describe synchronous reactive software systems, primarily intended for realtime control applications. Based on conditional term rewriting, an atom description is composed of a set of rules that defines the state transition behavior of the system at periodic intervals.

lshw (Hardware Lister) is a small tool to provide detailed information on the hardware configuration of the machine. It can report exact memory configuration, firmware version, mainboard configuration, CPU version and speed, cache configuration, bus speed, etc. on DMI-capable x86 or EFI (IA-64)
... [More] systems and on some PowerPC machines (PowerMac G4 is known to work). [Less]

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The Linux-Hardware-Guide provides a data base of hardware and investigates the Linux compatibility of the equipment.
Corresponding wordpress plugins, hardware recognition scripts and themes are developed as open source.